@article{10_21136_MB_2001_134201,
     author = {Kar\'asek, Ji\v{r}{\'\i}},
     title = {On a modification of axioms of general relations},
     journal = {Mathematica Bohemica},
     pages = {581--592},
     publisher = {mathdoc},
     volume = {126},
     number = {3},
     year = {2001},
     doi = {10.21136/MB.2001.134201},
     mrnumber = {1970261},
     zbl = {0978.03039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.134201/}
}